Hackmanite Sphere.

Hackmanite is a rare variety of sodalite prized by collectors for its distinctive tenebrescence—a color-shifting property that deepens under UV light and fades in daylight. This polished sphere showcases the stone's characteristic blue-violet hues with natural banding and subtle white veining. Ideal for display, meditation, or crystal enthusiasts seeking an uncommon addition to their collection. Each sphere is naturally unique in pattern and intensity.